The first thing that strikes you about Freddie Highmore is his accent. It's British, very much so. But nailing the American accent – and quirky personality – of autistic surgeon Shaun Murphy was a pushover for Freddie. Not only has he been acting since he was 10, he's also an accomplished linguist. Always something of a nerd, Freddie took time out from acting to study Arabic and Spanish at the UK's prestigious Cambridge University. As Alex Cullen reports, Freddie's now back at work as The Good Doctor – a role that has special meaning for him.